Window ventilator



Patented Oct. 31, 1939 UNITED STATES- ATENT OFFECE 2,178,253 WINDOWVENTILATOR William Fader, Newark, 'N. J.-

Application November 2, 1938, Serial No. 238,331

2 Claims.

v This inventionrelates to new and useful improvements in ventilatorsfor window openings and more particularly it pertains to ventilators ofthe type which are extensible within certain limits to various sizes ofwindow openings.

It is the primary object of the present invention to improve theconstruction and operation of the afore-mentioned type of ventilatorsthereby rendering them more adaptable to the purposes intended. I

A feature of the invention resides in a novel construction whereby twosliding telescoping sections, such as are commonly employed inventilators of the afore-mentioned type, may be possessed of freesliding action without binding of the parts. I I

A further feature of the invention resides in novel means for limitingthe sliding movement in one direction of the telescoping sections andthereby prevent pinching or otherwise damaging the hands of a person intheir attempt to adjust the telescoping sections.

Still a further feature of the invention resides in a novel constructionwhereby the telescoping sections will occupy close relation to eachother as distinguished from'a relatively wide spacing between themembers ever present in such devices as commonly constructed.

'Still a further feature of the invention resides in a novelconstruction whereby the ventilator may be secured in the opening of awindow frame at a point just in advance of the window with either of itsside edges uppermost.

- Other features of the invention relate to certain novel and improvedconstructions, arrangements and combinations of partsher-einafter'described and particularly pointed out in the claims, theadvantages of which will be readily understood and appreciated by thoseskilled in the art.

The invention will be clearly understood from the accompanying drawingillustrating the invention in its preferred form and the followingdetailed description of the constructions therein shown.

In the drawing:

Figure 1 is-a view in elevation. of a ventilator constructed inaccordance withthe present invention,

Figure 2 is a top edge plan view thereof,

' Figure 3 is a transverse sectional view on an enlarged scalesubstantially on the line 3-3 of Figure 4 is a fragmentaryhorizontalsectional view on an enlarged scale taken substantially on the line 44of Figure 1,

section illustrating the manner inwhich the ven- 5 tilator is retainedin the frame of a window opening.

A ventilator constructed in accordance with the present inventioncomp-rises a plurality of telescoping sections of which there are twoillus- -10 trated in the present embodiment of the invention.

The two telescoping sections are designated A and B in the drawing, thesection A being the front section, the rear section being the one des-v1'5 igna'ted B. The sections are telescoped one within the other andhave relative sliding movement, the rear section B being the smaller ofthe two sections to permit of the afore-mentioned relation thereof.

Each of the sections consists of a panel mem her having a plurality oflouvers II] therein so arranged inv the sections as to provide a borderportion ll which defines the two side edges and the outer end-edge ofeach section.

The section A is formed with two side edge flanges I 2 and an end flangeI3 which flanges extend at substantially right angles to the plane ofthe body portion of the section and each of these flanges is formed witha flange I4 which extends substantially at right angles to the plane ofthe flange from which it extends. This construction provides a trackwayto the rear of the section A in which the section B is adapted to bemounted.

The section B is formed upon each of its side edges and upon one of itsend edges with a rearwardly extending flange I5 similar to the flangesI2 of the section A, except that the flanges I5 are naturally narrowerthan their respective flanges I2, as best illustrated in Figure 3 of thedrawing. Extendingsubstantially at right angles to each of the flangesI5 of the section B, there is a flange I Gas best illustrated in Figure3.

The width of the flanges I5 with relation to the width of theirrespective flanges I2 is such that they serve as guides or tracks whenthe two sections A and B are telescoped together and byreason of thefact that the flanges I2 and I5 extend rearwardly of their respectivesections, the panel portion of the sections, which carry the louvers III, are positioned in close proximity to each other as illustrated inFigure 3' drawing.

Ventilators of the type herein described are of the (an i iiiconstructed from relatively light sheet metal and as a result, there isa decided tendency to distortion of the sections when they are movedrelatively to each other. This distortion causes a binding of thesections considerably hampering their operation and often resulting inpermanent damage or injury to the sections.

In order to eliminate, to a considerable degree at least if notentirely, this tendency on the part of the sections to distort, thepresent invention provides additional guiding means which acts tomaintain the sections in proper alinement for free and easy slidingmovement between the sections.

Referring to the drawing, it will be noted that the section B is formedupon its front face with two grooves or channels 20 which are preferablyof V-shape. These grooves or channels 20 define the inner side edges ofthe border ll heretofore mentioned and to maintain the generalornamental design of the device, they are connected at .one end of thesection by a similar groove or channel 25, which, however, has nomechanical function.

The section A is formed upon its front face with grooves or channels 22similar to the aforementioned grooves or channels 29 of the section Band are intended to match with said grooves or channels of the section Bwhen the sections are in telescoped relation. The grooves or channels 22of the section A are connected at their outer ends by a groove orchannel 23 similar to the groove or channel 2! heretofore mentioned thusmaintaining the general continuity of design.

The formation of the grooves or channels 22 in the section A providesrearwardly projecting ribs or beads 25 upon the rear face of the sectionA and the several parts are so arranged and so proportioned that whenthe sections are telescoped together, the ribs or beads 25 of thesection Awill be received in their respective grooves or channels' inthe section B in such a manner as to have a sliding and yet guiding fittherein.

By this construction, the tendency on the part of the sections A and Bto distort is reduced to a minimum and it has been found in actualpractice that a more efficient sliding action between the sections isobtained than is possible of attainment with the construction ordinarilyemployed.

The device of the present invention is also provided with means to limitthe sliding movement of the sections in a direction towards each otherin such a manner that the edge of the inner end of each section isprevented from en- 'gagement with the end flange upon the outer end ofeach section, thereby preventing pinching of the fingers by reason ofmovement to completely telescoped position.

This means consists of a stop struck from one of the flanges 12 of thesection A and adapted to be engaged by the edge of the inner end of thesection B when the sections are moved in the direction towards eachother.

The stop heretofore referred to is best illustrated in Figures 4 and ofthe drawing and is designated 31 in said figures. As shown, the stop isstruck inwardly from the upper flange E2 of the section A at such alocation that as the two sections are moved in a direction towards eachother, the inner end edge of the section B will engage the stop 38 asshown at 3| in Figures 4 and 5 to limit the relative movement of thesections A and B towards each other as and for the purpose described.

As heretofore stated, the ventilator may be secured within a windowopening with either of its side edges uppermost and to accomplish thisresult the following construction is employed.

Each section is provided in its end flange I3 with two openings. Theseopenings are all of the same character and each consists of asubstantially circular central portion 32 and oppositely extendingelongated portions 33 which extend in opposite directions from thecircular portion 32 as best illustrated in Figure 3 of the drawing.These openings are so positioned that each is the same distance from itsrespective side edge of the ventilator and when the ventilator is placedin a window opening two screws such as 34 in Figure 6 are employed,there being one of such screws employed at each side of the windowopening.

If the heads of the screws 34 are inserted through their respectivecircular portions 32 of the openings and the ventilator moved intoengagement with the sill of the window opening, the bodies of the screwswill pass into the upper elongated portions of the openings and theheads of the screws will serve to hold the ventilator in place againstaccidental displacement.

The openings referred to being spaced the same distance from theirrespective side edges of the section in which they are formed, theventilator, with but two screws, one at each side of the window opening,may be positioned with either of its edges uppermost.

Thus it will be apparent that the present invention provides a new andimproved ventilator and while the invention has been herein illustratedin its preferred form, it is to be understood that it may be carried outin such other forms as rightfully fall within the scope of the appendedclaims.

Having thus described the invention, what is claimed as new, is:

1. A window ventilator comprising two telescoping sections adapted forsliding movement relative to each other, said sections havinginterengaging side edge flanges to aid in guiding the sections duringtheir relative sliding movement and additional means for guiding thesections in their sliding movement comprising a channel near each sideedge of one of the sections upon the front face thereof and a bead neareach side edge of the other section upon the rear face thereoof, thebeads on the second mentioned section being received in their respectivechannels of the first mentioned section when the sections are telescopedtogether.

2. A window ventilator comprising two telescoping sections adaptedforslidingmovement relative to each other, said sections havinginterengaging side edge flanges to aid in guiding the sections duringtheir relative sliding movement and additional means for guiding thesections in their sliding movement comprising a channel near each sideedge of one of the sections upon the front face thereof and a bead neareach side edge of the other section upon the rear face thereof, thebeads on the second mentioned section beingreceived in their respectivechannels of the first mentioned section when the sections aretelescopedatogether, and means for, limiting in one direction, thesliding movement of said sectionsv WILLIAM FADER.

